SOILS AND NATURAL VEGETATION
SOILS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Laterite soil
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Marine Deposits
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Black soil
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Alluvial soil
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Detailed explanation-1: -Laterite soils are mostly the end products of weathering. They are formed by the decomposition of rocks, removal of bases and silica, and accumulation of iron oxide and aluminium oxide.
Detailed explanation-2: -The laterite soil is formed under conditions of high temperature and heavy rainfall with alternate wet and dry periods, which leads to leaching of soil, leaving only oxides of iron and aluminum. It lacks fertility due to a lower base-exchanging capacity and a lower content of nitrogen, phosphorus, and potassium.
Detailed explanation-3: -The decomposition of organic matter is rapid due to microbial activity brought about by high precipitation and temperature. The organic matter content of this soil is rich. This process of soil formation is known as laterization.
Detailed explanation-4: -Typical laterite is porous and claylike. It contains the iron oxide minerals goethite, HFeO2; lepidocrocite, FeO(OH); and hematite, Fe2O3. It also contains titanium oxides and hydrated oxides of aluminum, the most common and abundant of which is gibbsite, Al2O3ยท3H2O.
Detailed explanation-5: -Detailed Solution. Laterite soils are mostly the end products of weathering.